package com.abocode.aichat.app.utils;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/***
 *  Created by guanxf on 2015/12/16.
 */
public class MD5Utils {
	//新的加密算法
	private static final String KEY_MD5 = "MD5";
	public  static final  String toMD5(String str) {
		MessageDigest messageDigest = null;
		try {
			messageDigest = MessageDigest.getInstance(KEY_MD5);
			messageDigest.reset();
			messageDigest.update(str.getBytes("UTF-8"));
		} catch (NoSuchAlgorithmException e) {
			System.exit(-1);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		byte[] byteArray = messageDigest.digest();
		StringBuffer md5StrBuff = new StringBuffer();
		for (int i = 0; i < byteArray.length; i++) {
			if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)
				md5StrBuff.append("0").append(
						Integer.toHexString(0xFF & byteArray[i]));
			else
				md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
		}
		return md5StrBuff.toString();
	}
}
